Cash register



y 13,. 1941- w. E. EICKMAN 2,211,987

CASH REGISTER Filed April 16, 1938 2 Sheets-Sheet 1 FIG. 1 W

173. mllllflllll Willis E. Eickman By I HisCZttorneg May 13, 1941.. w. E. EICKMAN 2,241,987

CASH REGISTER Filed April 16, less 2 Sheets-Sheet 2 Zhmentor Willis E. Eickman Patented May 13, 1941 UNITED STATES PATENT OFFICE National Cash Register Company,

Dayton,

Ohio, a corporation of Maryland Application April 16, 1938, Serial No. 202,375

10 Claims.

This invention relates to cash registers and accounting machines of the general type shown in United States patent to Bernis M. Shipley No. 1,619,796 granted March 1, 1927, and more particularly to resetting mechanism for the totalizers.

The principal object of this invention is to provide improved means, simple in construction and positive in its action, for controlling the differentially movable actuators during total taking or resetting operations.

Another object is to provide novel means, under control of the totalizer wheels, for disengaging the differential latches during total taking or resetting operations to thereby difierentially control the positioning of the actuators commensurate with the amounts on the totalizers.

An additional object is to provide a normally latched means for disengaging the latches of a differential mechanism, and means to unlatch the normally latched means to release the latter for operation during a total taking or resetting operation.

A further object is to provide a control member settable into position to cooperate with a totalizer wheel during a total taking or resetting operation, and operable by the totalizer wheel when at its zero position to control the difierential positioning of the totalizer actuator, said member being provided with a separate connection for each of said movements.

With these and incidental objects in view, the invention includes certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this specification.

Oi said drawings:

Fig. 1 is a sectional view in right elevation of one of the banks of amount keys and the differential mechanism associated therewith.

Fig. 2 shows a portion of the mechanism for changing the machine from a single cycle to a double cycle operation.

Fig. 3 is a fragmentary side view of the lower portion of the total control lever and a portion of the mechanism which cooperates therewith.

Fig. 4 is a sectional view in right elevation of the latch releasing element and a totalizerwheel-actuated control member for the element.

Fig. 5 is a detail side view of the means for driving said control member.

GENERAL DESCRIPTION In general, the present invention is somewhat similar to that disclosed in United States Patent No. 1,702,861, issued February 19, 1929, to Samuel Brand, but is an improvement thereon. It will be obvious from the following description that the present invention provides a mechanism more simple in construction and more positive in its operation than that disclosed in the aforesaid Brand patent, whereby the result is accomplished in an improved manner.

The machine shown in the present application has three lines of totalizers, arranged around a series of denominational circular adding racks or actuators, controlled as to their extent of movement in adding operations by banks or rows of depressible amount keys. The control of each actuator by its bank or row of keys is accomplished by means of a coupling or latch mechanism with which each actuator is provided, which latch is adapted to be disengaged from an invariably movable driver, so that the actuator may be arrested under control of a depressed key in a position corresponding to the value of the key depressed.

After the actuators have been adjusted under control of the depressed keys, the totalizer wheels composing the selected totalizer or totalizers are engaged with their respective actuators, after which the actuators are returned to their normal positions, to enter on the selected totalizer or totalizers the amount corresponding to the value of the keys depressed.

To take a total from any of the totalizers, and reset said totalizers to zero, a manually operable control or total lever is first adjusted to the proper position to select the particular totalizer line which carries the particular totalizers to be reset. The totalizer wheels of the selected totalizers are then engaged with their respective actuators, and the drivers turn the actuators and the engaged totalizer wheels until the latches of the actuators are disconnected from the invariably movable drivers by means under control of long teeth on the totalizer wheels as said wheels reach their zero position. The long teeth of all totalizer wheels of like denomination, irrespective of the number of such wheels, each operates a single zero resetting control member common to the totalizer wheels of like denomination on all the totalizer lines, which, through a novel latch releasing mechanism, causes the latches of the series of denominational actuators to be disconnected from their corresponding drivers as their associated totalizer wheels reach zero position.

DETAILED DESCRIPTION The present invention is shown embodied in a machine of the general type illustrated and described in the above mentioned Shipley patent, to which reference is hereby made for a complete disclosure of those features of the machine which are not specifically disclosed in this application. Although the invention is shown embodied in a machine of the general type disclosed in said patent, it is manifest that the invention may be embodied in other kinds of machines employing a similar type of differential mechanism.

KEYBOARD Furthermore, a total control lever 3| (Fig. 3),

only the lower portion of which is shown, is provided, one of the functions of which is to set up a condition in the machine so that upon operation of the latter the total of an accumulation on any desired or selected totalizer will be printed and the totalizer cleared. The total lever 3|, when moved into a total or subtotal position, controls the usual mechanism for conditioning the machine for a double cycle operation, which mechanism is fully illustrated and described in the above mentioned Shipley patent. A complete showing and description of the construction and operation of this lever are also to be found in said Shipley patent.

TOTALIZER-S AND DIFFERENTIAL Mechanism The several totalizer lines are arranged at substantially equi-distant points around a single series of actuators 32, mounted to turn on a shaft 35. Taking a single line as illustrative of the three lines shown, the totalizers on such line each comprise a series of totalizer wheels 33 (Figs. 1 and 4) independently journaled on a tubular axle or shaft 34, the units wheels of the several totalizers being grouped near one end thereof and adjacent the units actuator 32, common thereto, the tens wheels of the several totalizers forming the next group to the left of the units group and adjacent the tens actuator 32, and so on, as is customary in such types of machines.

The actuators 32 have toothed racks 35, lo-

cated opposite each of the respective totalizer lines, to cooperate with the totalizer wheels 33 on said lines. In the present instance each actuator 32 has formed integral therewith three toothed racks 35, arranged equi-distant about the periphery thereof, to cooperate with several totalizer wheels 33 of like denomination on the three totalizer lines. Hence each denominational actuator 32 is common to the totalizer wheels e 33 of like denomination on the several totalizer lines.

The machine is provided with a main drive shaft 49 (Fig. 1), which may be operated either by hand or motor, as preferred, in the usual manner. The shaft 40, as is customary in such machines, is given one complete clockwise rotation during single cycle or adding operations and two complete clockwise rotations during double cycle or total taking operations. Since the mode of operating the shaft 40 is old and well known in the art, as disclosed in the Shipley patent previously referred to, no complete showing or description thereof will be given herein.

The main drive shaft 40 has secured thereon two pairs of cams 4| and 42 (only one pair of which is shown), which serve to actuate mechanism for oscillating a series of denominational drivers 52, segmental in shape, throughout a com stant path of travel, first clockwise and then counter-clockwise, during each cycle of operation of the machine. The drivers 52 are pivoted on the shaft 36. The mechanism thus actuated by the two pairs of cams 4| and 42 consists of two levers 43 (only one being shown), each of which is located adjacent a pair of cams and carries a pair of rollers 44 and 45 coacting with the cams 4| and 42, respectively. The levers 43 are each pivoted on a stud 60 on separate hangers 46 supported on rods 47 and 48 mounted in the machine side frames. The two pairs of cams 4| and 42, through the rollers 44 and 45, rock the levers 43 first clockwise then counter-clockwise during each cycle of operation of the machine, which movement, through a rod 49 carried by the levers 43, is imparted to a series of levers 50 secured to said rod. The levers 50, in turn, are each pivotally mounted on the studs 60 in the various hangers 46 and are connected by links 5| to related denominational drivers 52, thus transmitting the same movement to said drivers.

The drivers 52 lie adjacent their corresponding denominational actuators 32, and each driver is provided with a shoulder 53 which is normally engaged with a foot 54 of a latch 55 pivotally carried by its respective actuator 32, so that unless the latches 55 are disengaged from their drivers 52, the latter will rock the actuators 32 throughout their paths of advance travel. The latches 55 are normally held in engagement with their drivers 52 by springs 6|.

However, means is provided to automatically disengage the latches 55 individually from their drivers 52 under several operating conditions of the machine, as will presently appear, so as to allow the drivers 52 to complete their invariable travel in a clockwise direction while the actuators 32 remain at whatever points they stand when the disengagement occurs. A forwardly extending arm 56 on each of said latches 55 cooperates with various latch-controlling means, through which the latches 55 are disengaged from their drivers 52 to arrest the actuators 32.

In an adding operation the amount is set up on the keyboard by depressing the proper keys 35], thereby introducing the inner ends of the depressed keys into the path of the arms 56 of the latches 55.

The operator also depresses the proper totalizer-selecting key (not shown), which sets the mechanism to select the particular totalizer on which he wishes to accumulate this amount, and then operates the machine by depressing the usual machine release bar (not shown).

'As previously mentioned, the main drive shaft 49 makes a single complete rotation on adding operations, during which it first rocks the group of drivers 52 clockwise and then counter-clockwise. The drivers 52, during their clockwise movement, advance those actuators 32 corresponding in denomination with the depressed keys 30 until the projecting arms 56 of the. latches 55 strike and are arrested by the inner ends of the depressed keys, whereupon, as the drivers 52 continue their travel, the latches 55 are rocked counter-clockwise to withdraw the feet 54 thereof from engagement with the shoulders 53 of the drivers 52 and to engage the forward ends of the latches 55 with notches 51, in the usual locking bars 58, opposite the positions at which the latches 55 have been arrested.

Obviously the arresting of the latches 55 by the depressed keys 30 and the engagement of the forward ends of the latches with the notched locking bars 58 arrest the actuators 32 in positions corresponding to the values of the depressed keys.

In those banks in which no key 30 has been depressed, the arms 56 of the latches 55 associated therewith strike and are arrested by zero stop pawls 59, thus arresting their associated actuators in the zero position. Depression of a key 30 in any bank also acts to move the pawl 53 associated therewith out of the path of the arm 56 of the latch 55 corresponding thereto. The construction and function of the pawls 59 are old and well known in the art, as disclosed in the Shipley patent previously referred to, and therefore need not be discussed in detail herein. The wheels 33 of the selected totalizers, which have been out of mesh with their appropriate actuator racks. 35 while the actuators 32 advance until arrested by the depressed keys 30, now engage the racks 35 of the differentially adjusted actuators 32, after which the actuators are restored to their normal positions by studs 62 on the drivers 52 contacting raised surface 33' on the usual beam 64 carried by the actuator 32, and in so doing the racks 35 turn the totalizer wheels 33 clockwise to register thereon the amount represented by the depressed keys.

TowALIzEa ENGAGING MECHANISM The mechanism for engaging the totalizer wheels 33 with their actuators 32 is fully shown and described in the above mentioned Shipley patent, and is not shown or described in detail herein. This mechanism engages the totalizer wheels 33 of the selected totalizers with their actuator racks 35 immediately after the actuators have been adjusted under control of the amount keys. After the actuators 32 have been restored to their normal positions and the amount entered into the totalizer or totalizers, said mechanism disengages the selected totalizer or totalizers from the actuator racks 35 in the usual manner.

Totalizer resetting When it is desired to take a total or sub-total from any particular totalizer, the total lever 3| is. manually moved from its normal add position (Fig. 3) to select the totalizer line in which a totalizer from which a total is to be taken is located. There are the usual three positions above the add position for taking sub-totals and the usual three positions below the add position for taking totals. The proper totalizer-selecting key (not shown) is then depressed to control the endwise shifting of the totalizer line to bring, the desired totalizer into alignment with the actuator racks 35. The mechanism for accomplishing the results jimt mentioned is old and well known in the art, as disclosed in the Shipley patent hereinbefore referred to, and therefore is not shown or described in detail herein.

The total lever 3|, when moved to one of its total taking positions, adjusts the totalizer engaging mechanism so that the totalizer line selected by said lever is rocked to engage the selected totalizer wheels 33 with the racks 35 near the end of the first cycle of said operation.

It is thus apparent that the totalizer wheels 33 are not engaged with the actuator racks 35 during the first cycle of a total taking operation; also the zero stop pawls 59 act to disengage the latches 55 from their drivers 52 during the first cycle of a total taking operation, thus arresting their corresponding actuators 32 in their zero positions. The totalizer wheels 33 are accordingly not reset during the first cycle of operation.

Near the end of the first cycle of operation, the pawls 59 are automatically rocked out of the paths of travel of the arms 56 of the latches 55, and are not returned to their normal positions until near the end of the second cycle of said operation, after the actuators 32 have been restored to their home positions. It will thus be seen that the actuators 32 will be free to move with their associated drivers 52 during the second cycle of operation until they are disengaged therefrom by means, to be later described, under control of the totalizer wheels 33.

With the totalizer wheels 33 in engagement with their respective actuator racks 35 at the beginning of the second cycle of operation, as above described, said wheels are turned counterclockwise by the racks 35 as the latter are rocked clockwise by their drivers 52 until said wheels reach their zero positions, in which position they are to be arrested.

Control of latches by totalizer wheels In such total taking or sub-total taking operations it is necessary to disconnect the actuators 32 from the drivers 52 by means under control of the wheels 33 when the latter arrive at their zero positions, and it is the mechanism for accomplishing this result which the present invention has simplified and made more positive in its operation.

To this end the present invention provides nov el mechanism for controlling the resetting of the totalizer wheels to zero, and novel latch-releasing mechanism operable to disconnect the actuators 32 from their drivers 52 differentially, depending upon the amounts registered on the in dividual wheels 33 of the totalizer being cleared, said mechanism being common to the several totalizer wheels of like denomination.

If the machine has been conditioned for taking a total from the selected totalizer and, at the same time, resetting the adding wheels 33 to their zero" positions, the totalizer engaging and disengaging mechanism will disengage the wheels 33 from their respective actuators 32 after the said actuators have been differentially positioned under control of the totalizer wheels 33 and before the actuators are returned counter-clockwise to their normal positions, thus leaving the totalizer wheels in their zero positions.

If, on the other hand, a sub-total or read operation is being performed, in which operation the totalizers have returned to them the amounts taken from them, the totalizer engaging and disengaging mechanism will maintain the engagement of the wheels 33 of the selected totalizers wtih their corresponding actuators 32 until after said actuators are returned counter-clockwise to their normal positions, thus turning the wheels 33 clockwise to the positions which they were in at the beginning of the operation.

As shown in Fig. 4, there is provided a latch releasing lever !9, one associated with each actuator 32, for releasing the differential latches 55 from the drivers 52 during total taking or sub-total taking operations. The levers 19 are pivotally mounted on a shaft H journaled at its ends in the usual side frames of. the machine. The forward arm of each lever has an arcuate outer edge 12 concentric with the shaft 36 and coextensive in length with the extreme path of travel of its corresponding actuator 32, and lies adjacent the path of the latch 55 carried by said actuator.

During the second cycle of a total or sub-total operation, when the actuators 32, whose racks are engaged with the wheels 33 of a selected totalizer, turn the latter counter-clockwise to their zero positions, a long tooth 13 on each of said wheels will, as said wheels approach their zero positions, contact a toe 14 of a three armed lever '15 and rock the same to rock the lever 19 clockwise by means to be later described. The lever 15 has a hub "if: by means of which said lever is pivoted on the shaft 36. The outer ends of the lever 15 are guided by grooved rods Tl mounted in the machine side frames. As the lever 10 rocks clockwise its arcuate edge 12 contacts a roller i8 carried by the latch on its corresponding actuator 32. As the actuator 32 advances in a clockwise direction, it drives the totalizer wheel 33, which, through the long tooth l3 and lever 15, rocks the lever i9, which rocks the latch 55 counter-clockwise to disengage it from its associated driver 52, whereupon the front of said latch engages the notch 51 opposite the position in which the disengagement of, the latch occurs. The corresponding actuator 32 is accordingly arrested in a position corresponding to the amount taken from the totalizer wheel 32 with which it is engaged.

Each latch releasing lever 79 is normally held in an ineffective position by a locking arm 39 pivotally mounted on a stud 81 carried by its respective hanger 49. The arm 89 has a hook 82 which engages a stud 83 on an arm 79 of the lever 10.

Means, to be later described, is provided for moving the arm 89 counter-clockwise out of its effective locking position during the first cycle of a total or sub-total operation and maintaining it in such moved position until near the end of the second cycle of such operation to permit the release lever Hi to function.

The toes T4 of the three armed lever '15 normally he cut of the paths of the long teeth 13 of their associated denominational totalizer wheels, to avoid interference with the totalizer wheels in adding operations.

It is only during total or sub-total taking operations that the levers l5 control the latch releasing lever 19 to effect the arrestment of the actuators 3'2, and consequently of the totalizer wheels when the latter, on their reverse rotations, reach their zero positions.

Considering a single denomination, such as that shown in Fig. 4, which is similar to all other denominations, it will be seen that the lever 15 has formed integral with its right-hand arm an additional arm 95 provided with a slot 96 into which projects a pin 97 carried by a link 98. The link 98 is pivoted to a lever 99 secured to the shaft '1! thus forming a connection between the lever 15 and the lever 99. The other end of the lever 99 carries a stud lfll which projects through and coacts with a cam slot I02 formed in the locking arm 80. The lever 99 when in its normal position, as shown in Fig. 4, serves to maintain the arm in its effective position to retain the lever 15 out of cooperative relation with the long teeth 13 of its associated totalizer wheels 33, by maintaining the stud [0| against the horizontal wall E99 of the slot I02.

Means is provided for giving the shaft 1 I, and consequently the lever 99 fast thereon, a clockwise rotation during the first cycle of a total or a sub-total operation and then a counter-clockwise rotation near the end of the second cycle of such operation to return it to its home position. Such clockwise movement of the lever 99, through the link 98, moves the pin 91 downwardly in the slot 96 of the arm to cam the three armed lever 15 clockwise to position its toes '14 so that the long tooth 13 on the wheel 33 of the selected and engaged totalizer can act on said lever '55 to control the disengagement of the latch 55 from its driver when said wheel 33 reaches zero position during a total or sub-total operation,

When the lever 99 is thus rocked clockwise it will, through the stud IUI coacting with the wall 19! of the cam slot I02, cam the locking arm 80 counter-clockwise and release its hook 82 from the arm 19 of the lever 19. This renders the lever 19 free to be actuated, through the lever 15, by the long tooth 13 of the selected totalizer wheels 33.

A link I93, pivoted to the arm 19 of the lever I9 and connected to the pin 9'1, forms the driving connection between the lever 15 and the lever 79.

The initial movement of the arm 99, through link 98 and stud 91, rocks the arm 15 clockwise, as above described. During this movement of the arm 15, the release lever 10 is held latched by the arm 89. Near the end of the clockwise movement of the arm 99, the stud llll strikes the wall 91 of slot I02 and cams the arm 80 counterclockwise (Fig. 4) to unlatch the release lever 10. The idle movement of the stud Ifll in the slot I02 is provided to prevent the unlatching of the arm 82 until after the stud 91 has shifted the release lever 15 substantially into its effective position. Since the arm 19 is held during the initial movement of the stud 91, the link I93 pivots on arm 19. The arm 19 is released near the end of the movement of the stud 9! in notch 96, and at this time the notch 96 is located at such an angle that continued movement of the stud 91 in the notch 96 will not shift link I03 toward the left (Fig. 4). Therefore, when the shaft H has completed its movement, the lever 15 will be in the fully ffective position, but the arm 19 will remain in the position shown.

From the foregoing it will be seen that when the totalizer wheel 33 which is engaged with the rack 35 of its associated actuator 32 is turned counter-clockwise by the latter to its zero position during the first half of the second cycle of operation, the long tooth '13 on said wheel will strike the toe M and cam the lever 75 counter clockwise, whereupon the arm 95 moves the pin 9? toward the left, as viewed in Fig. 4. Inasmuch as the lever 99 is unyieldingly held in its moved clockwise position at this time by means to be later described, the lever 15 will, through the link Hi3, directly rock the lever 19 clockwise. Such clockwise movement of the lever 10, as heretofore explained, causes the arcuate edge 12 thereof to contact the roller 18 and disengage the latch 55 from the driver 52, thereby arresting the advance movement of its actuator 32 in a position commensurate with the amount taken from the totalizer wheel 33.

As the shaft H and lever 99 are moved counterclockwise to their home positions near the end of the second cycle of said operation, the lever 99, engaging the wall I90, will restore the arm and the lever to their normal positions.

Latch control coupling means The driving means for rotating the shaft 1| and the lever 99 first clockwise and then counterclockwise in the manner above described includes a pair of cams I and I2I (Fig. 5) secured on the main drive shaft 40. These cams coact with a pair of rollers I22 and I23, respectively, carried by a Y-shaped lever I24 pivoted at I25 to a hanger plate I26 mounted on the rods 41 and 48. The lever I24 is connected by a link I21 to the right-hand arm of a bell crank I28 freely mounted on the shaft 36. Upon each complete clockwise rotation of the shaft during each cycle of operation, the cams I20 and I2I rock the lever I24 and, through the link I21, the bell crank I28 first clockwise and then counter-clockwise. The bell crank I28, in turn, is adapted to be coupled with means for transmitting said movements to the shaft H and the lever 99. now be described.

Pivotally mounted on the shaft 36 is a lever I40, the right-hand arm of which (Fig. 5) is provided with a cam slot I4I through which projects a pin I42 on an arm I43 fast on the shaft 1 I. The lever I40, when coupled to the bell crank I28, acts as the means for transmitting movement to the shaft 1 I.

The left-hand arm of the bell crank I28 has a notch I44 in parallel relation with a notch I45 in the left-hand arm of the lever I40. These notches I44 and I45 of the bell crank I28 and the lever I40 cooperate with a coupling pin I46 to couple said driving bell crank I20 to said transmitting lever I40.

The coupling pin I46 is carried by a link I41 pivotally connected to a lever I48 pivoted to the hanger I26. The means for actuating and controlling such coupling means will now be described.

The means for operating said coupling means consists of an arm I50 (Fig. 5) fast on the usual zero stop pawl thrcwout shaft I5I. This arm I50 has formed near its outer end a controlling slot I52 which coacts with a pin I53 on the lever I48. The control of said coupling means is brought about by the usual operation of the shaft I5I during total or sub-total taking operations. The operation of said shaft is old and well known in the art and is shown in the above mentioned Shipley patent, and will therefore be but briefly described here.

The total lever 3| (Fig. 3) is provided with a slot I54 which, when the total lever is moved to any of its total or sub-total taking positions, coacts with a pin I55 on an arm I56 to rock said arm counter-clockwise. The arm I55, in turn, is spring coupled to another arm I51 having formed therein a slot I58 coacting with a pin I50 in an arm I60 fast to the shaft I5I. Thus, when the total lever 3| is moved to any of its total or subtotal taking positions it will, through the mechanism just described, give the shaft I5I an initial clockwise movement, prior to the operation of the machine.

This means will Such initial clockwise movement of the shaft I5I, by means of the cam slot I52 in the arm I50, moves the coupling pin I46 downwardly into the slot I44 of the bell crank I28 to couple said bell crank to the lever I40, thus coupling the driving means to the transmitting means.

In addition, such initial clockwise movement of the shaft I5I adjusts means whereby said shaft I5I is given a further clockwise movement near the end of the first cycle of total or sub-total operation. This means includes a cam disc I6I (Fig. 2) pivotally mounted on a stud I62 carried by the right side frame of the machine. The cam I6I cooperates with a roller I63 carried by a pitman I64 slidably mounted on the stud I02. Con nected to the left-hand end of the pitman I64 is a lever I65 pivoted on a stud I66 and connected at its opposite end by a link I61 to an arm I68 secured to the shaft I5I. The cam I6I is normally retained in an inoperative position by the roller I63 engaging a notch I59 formed in the inside wall of a cam groove I10 in the cam I6I.

When the shaft I5I receives its initial clockwise movement, by the total lever 3| as previously described, it will, through the arm I68, link I61 and lever I65, slide the pitman I84 toward the left to withdraw the roller I63 from the notch I69 in the groove I10 of the cam disc I6I. At the same time, a coupling plate I1I slidable in a groove I12 of the cam disc I6I is shifted by pins I13 in the pitman I68 engaging a lip I14 of the plate I1 I, to move an arm I15 of the plate I1I into a notch I16 of a main drive gear I11 in a well known manner, whereby they will be made to rotate in unison. The gear I11 is driven one half a rotation for each full rotation of the main drive shaft by a gear I18 on said shaft and one full rotation during total or sub-total operations. As the cam disc I6I rotates counter-clockwise with the gear I11 during the operation of the machine, said cam will. through the cam groove I10 therein coacting with the roller I 63 near the end of the first cycle of said operation, rock the pitman I64 further toward the left and thereby, through the lever I65, link I61 and arm I68, give the shaft I5I its further clockwise movement.

The control of the shaft I5I from the total lever 3I and the cam disc I6I, as above described, together with the mechanism associated therewith for conditioning the machine for double cycle operations, is all old and well known in the art, and reference is hereby made to the hereinbefore mentioned Shipley patent for a full showing and description thereof.

As the shaft I5I receives its further clockwise movement near the end of the first cycle of operation, as above described, it will, through the cam slot I52 (Fig. 5), withdraw the coupling pin I46 from the slot I44 of the actuating bell crank I28 and locate such pin in a notch I in the stationary hanger plate I26, during which time the pin I46 remains in engagement with slot I45 of the transmitting lever I40 and serves to lock the lever in its actuated position.

Near the end of the second cycle of said operation, the shaft I5I is returned counter-clockwise by means of the groove I10 in the cam disc I6I, and this again moves the pin I46 to couple the lever I40 and the bell crank I28 together, and the driving cams I20 and I25 restore these parts to their normal positions.

Movement of the total lever 3i back to its normal or add position will move the shaft I5I further counter-clockwise, through the mechanism heretofore described, to unccuple the transmitting lever Mt from the actuating bell crank I28 by withdrawing the pin I46 from engagement with said bell crank, so that they will not be operated during adding operations. It should be noted that in its normal or home position, the pin M5 engages a notch I8| in the hanger plate I25 to hold the transmitting lever M against operation.

It can thus be seen that during total or subtotal taking operations the setting of the total lever 3! couples the driving mechanism to the transmitting mechanism, so that upon operation of the machine said mechanism will be operative.

Each single three armed lever l5 cooperates with all the totalizer wheels 33 of like denomination, regardless of the number of such wheels. Therefore, no matter which totalizer line is selected to have a totalizer thereon reset to zero, the levers 75 adjacent their respective denominational actuators 32 will control the latch connection between their respective actuators and corresponding drivers 52.

In the foregoing description of the construction and function of the various parts comprising the invention a complete explanation has been given of the operation of the present machine during both adding and total taking operations, and it is therefore thought unnecessary to include a summary of operation of the machine at this point. Such further description is therefore omitted.

While the form of mechanism herein shown and described is admirably adapted to fulfil the objects primarily stated, it it to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming within the scope of the claims which follow.

What is claimed is:

1. In a machine of the class described, the combination of a totalizer element; a differentially movable actuator to reset said totalizer element to zero; a driver for said actuator; a latch carried by said actuator and normally engaged with said driver to form a driving connection between the driver and said actuator; atwoarmed element adapted through one of its arms to disengage said latch from the driver to differentially position the actuator; and means connected to the other arm of said element and adapted to coact with said totalizer element when the latter reaches zero to operate said twoarmed element.

2. In a machine of the class described, the combination of a totalizer element; a differentially movable actuator to reset said totalizer element to Zero; a driver for said actuator; a latch carried by said actuator and normally engaged with said driver to form a driving connection between the latter and said actuator; a two-armed element adapted through one of its arms to disengage said latch from the driver; a device normally preventing operation of said two-armed element; a control member normally out of cooperative relation with said totaliv-er element and movable into cooperative relation therewith; a link connecting said control member to one of the arms of said two-armed element; and means for causing said device to release said two-armed element for operation and simultaneously moving said control member into cooperative relation with said totalizer element, the latter upon reaching its zero position moving said member and through said link moving the two-armed element to disengage the latch from said driver whereby the actuator is differentially positioned.

3. In a machine capable of performing adding and total taking operations and having a machine frame, the combination of a totalizer; an actuator therefor; control means whereby the totalizer controls the differential positioning of the actuator during total taking operations, said control means being in an ineffective position during adding operations and movable to an effective position during total taking operations; actuating means to move said control means into effective position, said actuating means being normally uncoupled from the control means; locking means on said frame adjacent the control means when the control means is in effective and ineffective positions; shi table means connected to the control means and movable into one position to couple the control means to the actuating means for movement thereby, said shiftable means movable to another position to coact with the locking means on the frame to maintain the control means in normal position and in effective position after the control means has been moved into its effective position by the actuating means; and means to selectively move the shiftable means to said one or other position at proper times during a total-taking operation.

i. In a machine capable of performing one cycle adding and multiple cycle total taking operations, the combination of a totalizer; an actuator therefor; a shaft adapted to be rotated to a plurality of positions; a cycle controlling mechanism; a total lever for controlling the machine in adding and total taking operations, said total lever when moved to total taking position rotating said shaft to one of its positions to render the cycle controlling mechanism effective, the latter mechanism being effective to automatically rotate said shaft to another position and return it to its first rotated position during a total taking operation; control means whereby said totalizer can control the differential positioning of the actuator during a total taking operation, said control mechanism being in an ineffective position during adding operations and movable into effective position during total taking operations; actuating means for said control means; and means controlled by said shaft for controlling the operation of said control means by its actuating means, including a member normally looking the control means in its ineffective position and shiftable when the shaft is given its initial movement to unlock the control means and couple the same to said actuating means for movement thereby, and shiftable when the shaft is given its automatic rotation to its other position to uncouple the control means from its actuator and lock the control means in its effective position, said member being shiftable when the shaft is given its automatic return movement to its initially moved position to unlock the control means and couple it to its actuating means for return to its ineffective position.

5. In a cash register, the combination of an accumulating element; a differentially movable actuator for adding items thereon and for resetting said element to zero; a lever adapted when actuated to control the differential positioning of said actuator; a device normally preventing said lever from being actuated; a member operated by said element to actuate said lever but normally out of cooperative relation with said element; a link connecting said member with said lever; and means to move said device into a position to release said lever and to simultaneously move said member into position to coact with, and to be actuated by, said element when the latter reaches its zero position on resetting operations.

6. In a cash register, the combination of an accumulating element; a differentially movable actuator for adding items on the accumulating element and for resetting said element to zero; a control member normally out of cooperative relation with said element; a manipulative device for conditioning the machine for resetting operations; actuating means; transmitting means; and adjustable means controlled by said device when the latter is moved to its resetting position to couple said actuating means to said transmitting means to cause the member to be moved into cooperative relation with said element and to uncouple said actuating means from the transmitting means and lock the latter in its actuated position while said element is being returned to its zero position when the latter will actuate said member to control the differential positioning of the actuator, said adjustable means being operable to again couple said actuating means to said transmitting means to restore the latter to its normal position during the latter part of the operation.

7. In a machine of the class described, the combination of a totalizer element; a differentially movable actuator to reset said totalizer element to zero; a driver for said actuator; a latch carried by said actuator and normally engaged with said driver to form a driving connection between the driver and the actuator; means on said latch; a two-armed lever having one of its arms normally out of engagement with the means on the latch but movable into engagement with the means on the latch to disengage the latch from the driver; means for retaining said lever in its normal position; a control element normally out of engagement with said totalizer element but movable into a position where it will be shifted by the totalizer element when the element is reset to zero; a link connecting said lever and said control element; means to move the link in one direction, when the lever is retained in its normal position, to thereby move the control element into position to cooperate with the totalizer element; and. means to remove said retaining means, after the control element has been moved, to enable the control element to move the link in another direction to shift the lever and disengage the latch as the control element is shifted by the totalizer element when the totalizer element is reset to zero.

8. In a machine capable of performing adding and total-taking operations and having a machine frame, the combination of a totalizer; an actuator therefor; control means whereby the totalizer controls the differential positioning of the actuator during total-taking operations, said control means being in an ineffective position during adding operations and movable to an effective position during total-taking operations; actuating means for moving said control means into effective position and back to normal position, said actuating means being normally uncoupled from said control means; shiftable means for locking said control means in normal and also in effective position and, when shifted, coupling the control means to its actuating means; and means for selectively shifting the shiftable means to lock and unlock the control means at proper times during the total-taking operation and to couple the control means to its actuating means Whenever the control means is unlocked.

9. In a machine capable of performing adding and total-taking operations and having a machine frame, the combination of a totalizer; an actuator therefor; control means whereby the totalizer controls the differential positioning of the actuator during total-taking operations, said control means being in an ineffective position during adding operations and movable to an effective position during total-taking operations; actuating means for moving said control means into effective position and back to normal position, said actuating means being normally uncoupled from said control means; shiftable means for locking said control means in normal and also in effective position and, when shifted, coupling the control means to its adjusting means; and means for shifting the shiftable means during a total-taking operation to first unlock the control means in normal position, and couple the actuating means to the control means, then shifting the shiftable means to uncouple the control means and lock the control means in effective position, then shifting the shiftable means to unlock the control means in effective position and couple the control means to its actuating means, and finally shifting the shiftable means to uncouple the control means from its actuating means and lock the control means in normal position.

10. In a machine of the class described, the combination of a totalizer element; an actuator movable different extents to enter items into and to reset said totalizer element; a driver for said actuator; latch mechanism carried by said actuator and normally engaged with the driver to form a driving connection between the actuator and the driver; a two-armed lever pivotally mounted adjacent said actuator, one arm of said lever being engageable with the latch mechanism and extending throughout the extent of differential movement of the actuator, said arm engaging the latch mechanism when the lever is pivoted, to thereby operate the latch mechanism to disconnect the actuator from the driver after different extents of movement of the actuator; a control member cooperable with the totalizer element and operated thereby in a resetting operation when the totalizer element reaches zero position; and means connecting said control member to the other arm of said two-armed lever; said control member, through the connecting means, pivoting said two-armed lever when the control member is operated by the totalizer element so that said one arm on the lever engages the latch mechanism and disconnects the actuator from the driver under control of the totalizer element.

WILLIS E. EICKMAN, 

